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ERIC Number: EJ927573
Record Type: Journal
Publication Date: 2011
Pages: 11
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0891-4222
Statistically Characterizing Intra- and Inter-Individual Variability in Children with Developmental Coordination Disorder
King, Bradley R.; Harring, Jeffrey R.; Oliveira, Marcio A.; Clark, Jane E.
Research in Developmental Disabilities: A Multidisciplinary Journal, v32 n4 p1388-1398 Jul-Aug 2011
Previous research investigating children with Developmental Coordination Disorder (DCD) has consistently reported increased intra- and inter-individual variability during motor skill performance. Statistically characterizing this variability is not only critical for the analysis and interpretation of behavioral data, but also may facilitate our understanding of the processes underlying DCD. Thus, the primary purpose of this research was to demonstrate the utility of a flexible statistical technique, a random coefficient model (RCM), that characterizes the increased intra- and inter-individual variability in children with and without DCD. We analyzed data from a sensorimotor adaptation task during which participants executed discrete aiming movements under conditions of rotated visual feedback. To highlight the advantages of this statistical approach, we contrasted the results from the RCM with those from a traditionally employed general linear model (GLM). The RCM revealed differences between the two groups of children that the GLM did not detect; and, characterized trajectories of change for each individual. The RCM provides researchers an opportunity to probe behavioral deficits at the "individual" level and may provide new insights into the behavioral heterogeneity in children with DCD. (Contains 4 figures and 3 tables.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A